Connecting device for electrical conductors.



l Y PATENT@ Aris'. 11', i908. l +B. B. PAHNESTOCK. NG DEVICE FOR ELECTRIC-AL C0NDUc'r0Rs-f APPLx'cATIoIi ruin nov.

com NEGTI sired.

ERNEST BENJAMIN FitHXlISTOGK, OFNEW YORK, N. Y.

Specification of Letters Patent.

CONNECTINSB- DEVICE FOR ELECTRICI'I; CONDUCTORS.

Patented Aug. 11, 1908.

Application 'filed November 2i, 1905. Serial No. 288,839.

To all whom it r'naj/ concern:`

Be it known that I, EnNi-:s'r BnxJAmx Fauxnsrocx, a citizen of the United States, residing at the borough of Manhattan, city,

county, and State of .\ew York, have invented certain new and luseful Improvements` in Connecting Devices for Electrical Conductors, of which the following is a specification.

Mv invention relates to a device adapted i .lo particularly for connecting wires or other electrical conductors and as herein embodied is designed to provide al ready and convenient means of connecting branch circuits, for example, in at a1i}r point on a main circuit is without cut-ting, bending, shaping or otherwise disturbing the main linewire or the service over the same.

The accompanying drawings will serve. to illustrate a device suitable for carrying my 2o invention into effect.A

1n the drawings: Figure l, i:= a view in perspectivc showing the. device in use. Fig. 2. is a plan view thereof. Fig. 3, is a central vertical section on the line s3, s, and Fig. 4, is a detailsection on thc line s, s.

Referring now to the drawings: 1 represents a wire, rod, bar, or other electrical conductor, which, for purposes of description,

will be hereinafter termed the main circuit orv line wire and may serve to curry current for telegraph, tclcplicne, signal, light, :ir other service. ,"M

2 represchts'onc of a series of branch circuit wires such as are usually connected in on the main circuit or line wire l, and as the lutter is ordinarily of continuous length, it is desirable that such connection should be mudo at iny point without interrupting or otherwise disturbing or interfering with servicc on the umili line. Forthis pur iose. l employ a. device comprising, csscntigiily two members, one a spring 3, und the other a clainpbolt 4.

The, spring is interposed between thewircs l and 2 at the point where tho connection is to be niadeand forms practically a continuation of the branch circuit wire., which if dcsircd, may be soldered thereto, but as will be later on explained, is preferably detachably secured:

- The spring shown is approximately O- shuped, but ma. be given any other form de- O'ne em 5, of the spring extends un- `\\der the line wire 1'," and is then bent upward forming a V-seat, in which the wire rests.

` Theopposite end 6 thereof projects oi'twurd i i i i l i l i i i l l horizontally or substantially parallel with the branch circuit wire 2, and terminates in'a downward bent extremity having' an aperture 7, formed therein. T he wire 2, extends through the aperture 7 an d is bent up to form a terminal loop or eye 8 in line with registerinor apertures 9 and l() in the-spring.

.fhus arranged, the parts are secured by the clamp bolt 4, the head of which is in the forni of a hook 11, which takes over the line wire 1, and combines with the V-portion of the spring to completely encircle the same, forming in effect, separable clamping meinbeis, one acting as a stop to render the ressure exerted by the other effective in ma -ng goed contact. V 1

The shank of the boltl passe-s throu h the apertures 9 and lt) of the spring, also t e ter- 4 minal loop S of the wire 2, and its projecting end is threaded as indicated to receive a nut 12, which,' when rotated in one direction, compresses the spring, causing it to exert equal pressure in opposite directions u on thcwvircs 1 and 2, theseparat-ion of whie is hunted bv the stops, t. e., the hook and nut of the bolt.

The advantages of my invention will be ap iarent from the foregoing description.

llaving thus described my invention, I claim:

1. A fastening device for electrical conductors comprising two opposed and normally separated members, one of said ine-Irbers` shaped to forni a. hook, a third structurally independent member provided with a hook at one cud and an adjustable compression device at the other'cnd and adapted to co-act with said opposed members to clamp two electrical conductors- 2. A'fastening device for electrical conductors comprising two opposed normally' separated members, one of said members bent from without inward to form a. hook portion, a third structurally independent hook member provided with a hook at one cud arranged in a direction opposed to that of thc member having thc hook portion, and :in adjustable compression device at the` other ond adapted to co-act with the oppo site member whereby two electrical conductors` may be clamped into conducting relation.

3.' The combination of a. continuons line. wire, a hook engaging the lino wirc and terminating in a threaded shank, a brauch circuit wire encircling tho shank, a spring interwire and vary the tension of the spring.

" n clamp boltade. ted to extend through said the 'spring and engaging the line wire, and a `the bend of the loop iin angular wire-eiigiig- .posed between the wires, and a not on the E shank for varying the tension of the spring. g

4. The'combination of i: continuons line i Awire, ey brfineh circuit \.\'ire,-e `spring interl posed between the wires and having shaped E portions serving as guides therefor, iihooki extending through registering openings of;

mit threaded upon the shank of the hook, saidnut serving to chimp the branch circuit 5. A fastening device for electrical con-i diictors comprising e piece or resilient metal'i looped on itself to form ii. body member, and a spring member, zuid having one end bent in e reverse direction to the loop to forni with ing portion, both siiid body member :ind wire engaging portion being provided with :ipertiires, and ai resistant. member in the forni of baring noriiiiilh separa-ted opposing freev ended slotted members, :ind n cliiinp bolt adapted io extend through sind slots, whereby when the members are forced together, a.

conductor muy 'be inserted between eoaetino' portions of the elziinp bolt find oneslutteil member and be iii-nih' griipcd by the retractivo force of Siiid slot-ted member.

7. A iisteniiig device for electrical conduct-ors, comprising :i clamp bolt provided with a wire or conductor reeeiving portion,

and a spring clamping member adiiisia-bly connected to sind bolt and adapted to copi Grate wit-h the wire receiving portion thereof for clamping seid wire or conductor, one free end of said spring member forming n. linger piece.

S. A fasteningr device for electrica-l coiidiietors, comprising slotted free ended body sind spring members, and :i seperate und in'- dependent resistant member passing tliroiigh member to chimp zi. conductor.

In testimony whereof, I :iihx my Signature,

the presence of two witnesses.

Witnesses:

MYiiA B. MARTIN WILLIAM T. READ.

iiiixrsriiiiiiiiiini riiiirsreeic.

50 said slots and eoi'ierniiiig wit-h the spring 

